You are logged in as remote user wiki in session ACD11187E8CF5E70FD05C88D77F36F46

Your user principal name is wiki

You have been granted role Authenticated

But the wiki refuses to accept the user (this container-managed authorization setup used to work with 2.8.4)

I am not sure what actually went wrong, there is nothing in the logs, might be that the user could not be gotten from the container, might be, that the policy (which I did not touch) is wrong, or that web.xml could not be parsed.